🧹 Code linting, 🔧 Fixed bug, 🔨 Improved delta output

Code was linted to improve quality and reviewability

• Added Typing to variables and functions
• Use PEP 8 standards as much as possible
• Doc strings all over the place
• Found a bug in the process! Info files were not being opened during CNV GISTIC output, therefore non-diploid samples will have some incorrect values. Applied a fix for this
  Also modified delta output to merge timeline data to fix incremental upload behavior

What's Changed

• merge delta timeline data for all patient IDs by @wongjessica93 in #82
• 🧹 Code Linting by @migbro in #83

Full Changelog: v2.2.0...v2.2.1